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HTTR(高温工学試験研究炉)の試験・運転と技術開発(2003年度)

Operation, test, research and development of the High Temperature Engineering Test Reactor (HTTR) (FY2003)

高温工学試験研究炉開発部

Department of HTTR Project

日本原子力研究所(原研)のHTTR(高温工学試験研究炉)は、燃料として被覆燃料粒子、炉心構造材に黒鉛、1次冷却材にヘリウムガスを用いた原子炉熱出力30MW,原子炉入口冷却材温度395$$^{circ}$$C,原子炉出口冷却材温度850/950$$^{circ}$$Cの日本初の高温ガス炉である。HTTR原子炉施設は、平成13年12月に熱出力30MWを達成し、平成14年3月に使用前検査合格証を取得した。本書は、平成15年度(2003年度)の設備の整備状況,運転保守管理,放射線管理及び技術開発の状況を紹介する。

The HTTR (High Teperature Engineering Test Reactor) with the thermal power of 30MW and the reactor outlet coolant temperature of 850/950$$^{circ}$$C is the first high temperature gas-cooled reactor (HTGR) in Japan, which uses coated fuel particle, graphite for core components and helium gas for primary coolant. December 2001, the thermal power of 30MW and the reactor outlet coolant temperature of 850$$^{circ}$$C was attained. JAERI received the certificate of pre-operation test, that is, the commissioning licence for the HTTR in March 2002. This report summarizes operation, tests, maintenance, radiation control, and construction of components and facilities for the HTTR as well as R&D on HTGRs for FY2003.

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